Electric heating device.



P. 0. CHASE.

ELECTRIC HEATING DEVICE.

LPPLIOATIOH FILED JULY 23. 1908.

Elvwwntoz Patented Apr. 20, 1909.

UNITED sTATEs PATENT OFFICE.

PERRY G. CHASE, OF UPLAND, CALIFORNIA.

ELECTRIC HEATING DEVICE.

Application filed July 23, 190a. Serial No. 445,000.-

To all whom it may concern:

Be it known that I, PERRY C. CHASE, a citizen of the United States, residing at Upland, in the county of San Bernardino and State of California, have invented certain new and useful Improvements in Electrio Heating Devices, of which the following is a specification, reference being had to the accompanying drawings.

My invention relates to improvements in electric heaters and more particularly one which may be immersed in a vessel containing water or other liquid for the urpose of heating. the same and which'may e readily connected to any electric light socket.

The object of the invention is to provide a portable electric water heater of this charac ter which will be simple and inexpensive in.

planes at right angles to each other; and

Fig. 4 is' a transverse sectional view.

In the drawings 1 denotes my improved portable electric water or liquid heater which is connected by a conducting cord 0 to a plug P which may be screwed into an ordinary electric light socket. The heater comprises a body through which the water or iquid may freely circulate and which contains suitably connected and arranged resistanee coils. The body 1 is preferably of rectangular shape and constructed of an 0 on metal frame 2 of angle metal strips.

he open sides or faces of the frame 2 are covered by sheets or plates 3 of mica or any other non-conducting material, which sheets or plates are formed with large holes or openings 4 to permit the water to freely circulate through the body or casing. Arranged within the body are a plurality of coil supporting plates 5 between which are arranged spacing plates 6, the latter being provided to prevent the wires of the coils of adjacent plates 5 from coming in contact with each other and short circuiting portions of said coils, thereby insuring the passage of the current through every portion of each coil.

Specification of Letters Patent.

coils 9 generates heat in the latter which .of said wires, t e wires of adjacent coils Patented April 20, 1009. I

These plates 5, 6 are preferably constructed of mica and the su porting or carrying plates 5'are of slightly ess size than the spacin plates 6 and each has centrally disposed apertures 7 arranged adjacent to its ends, and notches or seats 8 formed in its opposite side edges. A wire 9 is wrapped or coiled around each of the plates 5, its coils being engaged with the seatsS and thereby properly spaced apart, and its ends being passed through the apertures 7, as illustrated. In each of the spacing plates 6 adjacent to one of its ends is an aperture 10 through which the end of one of the 'wires 9 may be passed so that such wire can be connected to the corresponding wire on the next adjacent plate 5, as shown at 11. y The up er ends of the wires 9 upon the outermost p ates 5 are passed through a ertures 12 in the upper end plate of the ody 1 and suitably connected to the conductors of the cord C, the

joint on connection being wrapped or covered by insulating material, as indicated at 13. The lower ends of the wires upon the endmost plates 5 and the wires u on the intermediate plates 5 are connecte so that all of' said wires will be in the electric circuit.

In using the invention the body 1 is immersed in the water or other liquid to be heated and the current is then turned on by means of the key in the socket in which the plug P is inserted. The resistance offered the current in passing through the wires or will quickly heat the water that circulates through the b0 d Having thus dbscribed my invention what I claim is:

1. An electric water heater adapted to be submerged in a liquid and comprising a perforated body, a plurality of coil carrying plates of non-conducting material arranged in the body in arallel relation and each having its side edges formed with notches, each of said plates also having perforations arranged ad acent its ends, wires having their ends passed through the apertures in said carrying plates and their intermediate portions wound or coiled around said plates and engaged with said notches, and spacing plates composed of non-conducting material arran ed within the body between the carrying p ates and a ertured to receive certain being united and the wires of the outer or .endmost coils projecting outside of the body.

' of non-conducting material arranged within 2. An electric water heater adapted to be submerged in a liquid and comprismg a body the body in parallel relation, wires wrapped around said plates to provide heating coils,

and spacing plates of non-conducting mate rial arranged in the body between said carrying plates, the wires of adjacent coils being connected and the wires of the endmost coils projecting outside of the body.

3. An electric heater of the characterde scribed comprising a bodyhaving an open metal frame constructed of angle straps,

apertured lates of nonconducting material covering the sides of said open frame, coil carrying plates of non-conducting material arranged within the body, wires wrapped or coiled around said carrying lates, the wires or coils upon the adjacent p ates being connected, spacing plates between said carrying plates, and an electric circuit terminal connected with the outermost coils or wires.

4. Thehereindescribed electricwaterheater comprising a rectangular body consisting of an open metal frame constructed of angle straps and apertured plates of non-conducting material covering the sides of the frame and having their edges seated in the angles there-' of s'aid'straps, the top plate being formed with spacedo enings, rectangular co l car-. rying lates -o non-conducting"material arranged within the body, said 0011 carrying lates being of less size than the body an I having their side edges formed with notches,v

said coil. carrying plates also having centrally arranged openings adjacent to their top and bottom edges, rectangular spacmg plates of non-conducting material arranged in the body between the coil carrying plates, the alternate s acing plates being formed adjacentto their top and bottom edges with openings, wires wrapped around the coil carrying plates and engaged with the notches in the same, the en s of. the wires bein passed through said openings in the co carrying plates and in the spacing plates,

and the ends of the wires. of adjacent coils being united, the ends of the wires ofthe endmost coils being passed through said 'spaced openings in the top plate of the body,

a plug and a conductingcord between the latter and the ends of the wires of the endmost coil. 7

In testimony whereof I hereunto aifix my signature in the presence of two witnesses.

PERRY O. CHASE.-

Witnesses:

EVA MAE GERRY, R. P. Non'ron. 

